MySQL: Getting a row number (ranking) for a specific row

Question

I have a users table that has a column called money_sent. I want to order this table by money_sent in descending order, and then find

Answer 1

SELECT Row,user, money_sent
FROM (SELECT @row := @row + 1 AS Row, user, money_sent 
       FROM table1 order by money_sent desc) 
As derived1